mineral specimens
rare minerals
mineral dealer
systematic minerals
Black Hills minerals
fine minerals
mineral dealer
Dana minerals
IMA minerals
mineral collections
rock and minerals
gem crystal
Checkout
0 item @ $0.00  
Home | My Cart | Login | Register

Recently Released New Additions

Mixed Minerals

Friday, 12 May 2023 05:00 PM

Introducing the "Mixed Minerals" gallery which is part of our New Additions galleries. This gallery contains mineral specimens for sale including ferristrunzite, kolbeckite, metaswitzerite, meurigite-k, tiemannite, and wurtzite and more from places like Mont-des-Groseillers, Blaton, Mons, Henegouwen, Belgium, Christy dep., Magnet Cove, Hot Spring Co., Arkansas, United States, Iron Knob, Eyre Peninsula, South Australia, Australia, Sapucaia mine, Galileia, Doce valley, Minas Gerais, Brazil, Lucky Boy mine, Marysvale, Piute Co., Utah, United States, and Noril'sk, Siberia, Russia.

Ferristrunzite - BAC61669
Ferristrunzite - BAC61669

Ferristrunzite

#BAC61669
Locality
Mont-des-Groseillers, Blaton, Mons, Henegouwen, Belgium 
Formula
Fe3+Fe3+2(PO4)2(OH)3·5H2O 
Availability
Available
Price
$85.00
Size
5 x 3 x 2 cm - Miniature 
Tagged
phosphate  

White radiating, fibrous Ferristrunzite groups to 2mm.


Ferristrunzite

Formula
Fe3+Fe3+2(PO4)2(OH)3·5H2O 
Crystal System
Triclinic 
Crystal Habit
Acicular, Aggregates 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
brownish yellow, light yellow 
Streak
light yellow 
Class
Triclinic 
Hardness
4 
Mineralpedia
View Ferristrunzite
On Dakota Matrix
Previously Sold Ferristrunzite
On Dakota Matrix
Other Available Ferristrunzite
WebMineral
View Ferristrunzite
Mindat
View Ferristrunzite
Kolbeckite - 61665
Kolbeckite - 61665

Kolbeckite

#61665
Locality
Christy dep., Magnet Cove, Hot Spring Co., Arkansas, United States 
Formula
ScPO4·2H2O 
Availability
Available
Price
$35.00
Size
2 x 1.2 x 1.1 cm - Thumbnail 
Tagged
phosphate  

Yellow tabular crystal to 1mm.


Kolbeckite

Formula
ScPO4·2H2O 
Crystal System
Monoclinic 
Crystal Habit
Spherical 
Cleavage
Good, Indistinct, Indistinct 
Luster
Vitreous - Pearly 
Color
blue gray, colorless, greenish white, yellowish, light blue 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness
5 
Mineralpedia
View Kolbeckite
On Dakota Matrix
Previously Sold Kolbeckite
On Dakota Matrix
Other Available Kolbeckite
WebMineral
View Kolbeckite
Mindat
View Kolbeckite
Metaswitzerite - BAC61676
Metaswitzerite - BAC61676

Metaswitzerite

#BAC61676
Locality
Iron Knob, Eyre Peninsula, South Australia, Australia 
Formula
Mn2+3(PO4)2·4H2O 
Availability
Available
Price
$55.00
Size
3 x 2 x 1.5 cm - Thumbnail 
Tagged
phosphate  

White to pink platy crystals of Metaswitzerite to 3mm.


Metaswitzerite

Formula
Mn2+3(PO4)2·4H2O 
Crystal System
Monoclinic 
Cleavage
Perfect, Distinct, None 
Luster
Pearly 
Color
brown, golden brown, light yellow brown, light pink 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Micaceous 
Hardness
2.5 
Collection
William & Anne Cook Collection
On Dakota Matrix
Previously Sold Metaswitzerite
On Dakota Matrix
Other Available Metaswitzerite
WebMineral
View Metaswitzerite
Mindat
View Metaswitzerite
Meurigite-K - BAC61666
Meurigite-K - BAC61666

Meurigite-K

on Cryptomelane - #BAC61666
Locality
Sapucaia mine, Galileia, Doce valley, Minas Gerais, Brazil 
Formula
[K(H2O)2.5][Fe3+8(PO4)6(OH)7]·4H2O 
Availability
Available
Price
$45.00
Size
2 x 1 x 0.5 cm - Thumbnail 
Tagged
phosphate  

Fuzzy-looking spheroidal crystal groups to 0.25mm. Very rich coverage front and backside.


Meurigite-K

Formula
[K(H2O)2.5][Fe3+8(PO4)6(OH)7]·4H2O 
Crystal System
Monoclinic 
Crystal Habit
Tabular, Spherical 
Cleavage
Good, None, None 
Luster
Silky 
Color
white, cream, yellowish brown, pale yellow, canary yellow 
Streak
pale yellowish white 
Class
Monoclinic - Prismatic 
Hardness
3 
Collection
William & Anne Cook Collection
Mineralpedia
View Meurigite-K
On Dakota Matrix
Previously Sold Meurigite-K
On Dakota Matrix
Other Available Meurigite-K
WebMineral
View Meurigite-K
Mindat
View Meurigite-K
Tiemannite - BAC61679
Tiemannite - BAC61679

Tiemannite

with Paraguanajuatite(?) - #BAC61679
Locality
Lucky Boy mine, Marysvale, Piute Co., Utah, United States 
Formula
HgSe 
Availability
Available
Price
$85.00
Size
4.5 x 2.5 x 1.5 cm - Miniature 

Dull to shiny silvery Tiemannite with possible shiny Paraguanajuatite.


Tiemannite

Formula
HgSe 
Crystal System
Isometric 
Crystal Habit
Euhedral Crystals, Massive - Granular 
Cleavage
None, None, None 
Luster
Metallic 
Color
gray, reddish brown, black 
Streak
grayish black 
Class
Isometric - Hextetrahedral 
Fracture
Brittle 
Hardness
2.5 
Collection
William & Anne Cook Collection
Mineralpedia
View Tiemannite
On Dakota Matrix
Previously Sold Tiemannite
On Dakota Matrix
Other Available Tiemannite
WebMineral
View Tiemannite
Mindat
View Tiemannite
Wurtzite - BAC61680
Wurtzite - BAC61680

Wurtzite

#BAC61680
Locality
Noril'sk, Siberia, Russia 
Formula
ZnS 
Availability
Available
Price
$125.00
Size
6 x 5 x 4.5 cm - Sm Cabinet 
Tagged
sulfide  

Excellent specimen of Wutrzite crystals to over 3cm with a deep red to black color.


Wurtzite

Formula
ZnS 
Crystal System
Hexagonal 
Crystal Habit
Radial, Tabular, Colloform 
Cleavage
Good, Good, None 
Luster
Adamantine - Resinous 
Color
brownish black, orange brown, reddish brown, black 
Streak
light brown 
Class
Hexagonal - Dihexagonal Pyramidal 
Fracture
Uneven 
Hardness
3.5-4 
Collection
William & Anne Cook Collection
Mineralpedia
View Wurtzite
On Dakota Matrix
Previously Sold Wurtzite
On Dakota Matrix
Other Available Wurtzite
WebMineral
View Wurtzite
Mindat
View Wurtzite

All photos by Dakota Matrix and are Copyrighted © and may not be used without permission. Copyright © 2023 - Dakota Matrix Minerals, Inc. Privacy | Terms & Conditions | Site Map